Google announced a custom search engine
Google co-op. With this every user can lauch a customized search engine. If one is interested in IT architecture (as I am), you can lauch a search engine and add websites than can be preferentially (or exclusively) searched on that topic. At one time it was popular to publicize your favorite websites. Now you can do that and add search capabilities to it! This is a good idea because there is a limit to the value one can derive from generic search engines. Nice search engines are difficult to lauch because thery require some domain knowledge. By allowing the users to do it, Google can tap into this expertise and make Google more relevant. Here is a
link to my search engine for IT architecture.